LL Cool J’s concert was canceled Sunday night after members of rival gangs took over the Verizon Wireless Amphitheatre stage and began clubbing people with metal bars, police said Monday. LL called the fight “appalling” adding, “I think that it’s just a prime example of how much, how we as black men really need … someone around us who can guide us in the right direction and how we are so in desperate need of attention that we would ruin an event just to feel important.”